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math-ph2026
Wigner symmetries single out symmetric Wasserstein distances in all finite dimensions
Gergely Bunth
We study the quantum Wasserstein distances of De Palma and Trevisan associated with quadratic costs generated by self-adjoint observables in arbitrary finite dimension. We first sh…
math-ph2026
Quantum Wasserstein isometries of the -qubit state space: a Wigner-type result
Gergely Bunth, Eszter Szabó, Dániel Virosztek
We determine the isometry group of the -qubit state space with respect to the quantum Wasserstein distance induced by the so-called symmetric transport cost for all $n \in \math…